package com.rd.teacher.jichao.day27;

import java.io.File;

public class Test30 {

    public static void main(String[] args) throws Exception{
        File file = new File("all.txt");
//        try {
//            FileWriter fw = new FileWriter(file);
//        } catch (IOException e) {
//            throw new RuntimeException(e);
//        }
    }
}
